Large-displacement, hydrothermal frictional properties of DFDP-1 fault rocks, Alpine Fault, New Zealand: Implications for deep rupture propagation
- Publikationstyp:
- Zeitschriftenaufsatz
- Metadaten:
-
- Autoren
- AR Niemeijer
- C Boulton
- VG Toy
- J Townend
- R Sutherland
- Autoren-URL
- https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000373084400012&DestLinkType=FullRecord&DestApp=WOS_CPL
- DOI
- 10.1002/2015JB012593
- eISSN
- 2169-9356
- Externe Identifier
- Clarivate Analytics Document Solution ID: DH8ZC
- PubMed Identifier: 27610290
- ISSN
- 2169-9313
- Ausgabe der Veröffentlichung
- 2
- Zeitschrift
- JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
- Schlüsselwörter
- friction
- earthquakes
- hydrothermal
- Alpine Fault
- Paginierung
- 624 - 647
- Datum der Veröffentlichung
- 2016
- Status
- Published
- Titel
- Large-displacement, hydrothermal frictional properties of DFDP-1 fault rocks, Alpine Fault, New Zealand: Implications for deep rupture propagation
- Sub types
- Article
- Ausgabe der Zeitschrift
- 121
Datenquelle: Web of Science (Lite)
- Andere Metadatenquellen:
-
- Abstract
- <jats:title>Abstract</jats:title><jats:p>The Alpine Fault, New Zealand, is a major plate‐bounding fault that accommodates 65–75% of the total relative motion between the Australian and Pacific plates. Here we present data on the hydrothermal frictional properties of Alpine Fault rocks that surround the principal slip zones (PSZ) of the Alpine Fault and those comprising the PSZ itself. The samples were retrieved from relatively shallow depths during phase 1 of the Deep Fault Drilling Project (DFDP‐1) at Gaunt Creek. Simulated fault gouges were sheared at temperatures of 25, 150, 300, 450, and 600°C in order to determine the friction coefficient as well as the velocity dependence of friction. Friction remains more or less constant with changes in temperature, but a transition from velocity‐strengthening behavior to velocity‐weakening behavior occurs at a temperature of <jats:italic>T</jats:italic> = 150°C. The transition depends on the absolute value of sliding velocity as well as temperature, with the velocity‐weakening region restricted to higher velocity for higher temperatures. Friction was substantially lower for low‐velocity shearing (<jats:italic>V</jats:italic> < 0.3 µm/s) at 600°C, but no transition to normal stress independence was observed. In the framework of rate‐and‐state friction, earthquake nucleation is most likely at an intermediate temperature of <jats:italic>T</jats:italic> = 300°C. The velocity‐strengthening nature of the Alpine Fault rocks at higher temperatures may pose a barrier for rupture propagation to deeper levels, limiting the possible depth extent of large earthquakes. Our results highlight the importance of strain rate in controlling frictional behavior under conditions spanning the classical brittle‐plastic transition for quartzofeldspathic compositions.</jats:p>
- Autoren
- AR Niemeijer
- C Boulton
- VG Toy
- J Townend
- R Sutherland
- DOI
- 10.1002/2015jb012593
- eISSN
- 2169-9356
- ISSN
- 2169-9313
- Ausgabe der Veröffentlichung
- 2
- Zeitschrift
- Journal of Geophysical Research: Solid Earth
- Sprache
- en
- Online publication date
- 2016
- Paginierung
- 624 - 647
- Datum der Veröffentlichung
- 2016
- Status
- Published
- Herausgeber
- American Geophysical Union (AGU)
- Herausgeber URL
- http://dx.doi.org/10.1002/2015jb012593
- Datum der Datenerfassung
- 2023
- Titel
- Large‐displacement, hydrothermal frictional properties of DFDP‐1 fault rocks, Alpine Fault, New Zealand: Implications for deep rupture propagation
- Ausgabe der Zeitschrift
- 121
Datenquelle: Crossref
- Abstract
- The Alpine Fault, New Zealand, is a major plate-bounding fault that accommodates 65-75% of the total relative motion between the Australian and Pacific plates. Here we present data on the hydrothermal frictional properties of Alpine Fault rocks that surround the principal slip zones (PSZ) of the Alpine Fault and those comprising the PSZ itself. The samples were retrieved from relatively shallow depths during phase 1 of the Deep Fault Drilling Project (DFDP-1) at Gaunt Creek. Simulated fault gouges were sheared at temperatures of 25, 150, 300, 450, and 600°C in order to determine the friction coefficient as well as the velocity dependence of friction. Friction remains more or less constant with changes in temperature, but a transition from velocity-strengthening behavior to velocity-weakening behavior occurs at a temperature of <i>T</i> = 150°C. The transition depends on the absolute value of sliding velocity as well as temperature, with the velocity-weakening region restricted to higher velocity for higher temperatures. Friction was substantially lower for low-velocity shearing (<i>V</i> < 0.3 µm/s) at 600°C, but no transition to normal stress independence was observed. In the framework of rate-and-state friction, earthquake nucleation is most likely at an intermediate temperature of <i>T</i> = 300°C. The velocity-strengthening nature of the Alpine Fault rocks at higher temperatures may pose a barrier for rupture propagation to deeper levels, limiting the possible depth extent of large earthquakes. Our results highlight the importance of strain rate in controlling frictional behavior under conditions spanning the classical brittle-plastic transition for quartzofeldspathic compositions.
- Addresses
- Faculty of Geosciences, HPT Laboratory Utrecht University Utrecht Netherlands.
- Autoren
- AR Niemeijer
- C Boulton
- VG Toy
- J Townend
- R Sutherland
- DOI
- 10.1002/2015jb012593
- eISSN
- 2169-9356
- Externe Identifier
- PubMed Identifier: 27610290
- PubMed Central ID: PMC4994769
- Funding acknowledgements
- Natural Environment Research Council: NE/J024449/1
- Dutch Research Council (NWO): 854.12.011
- Natural Environment Research Council: NE/H012486/1
- European Research Council: 335915
- Natural Environment Research Council: 1544352
- Open access
- true
- ISSN
- 2169-9313
- Ausgabe der Veröffentlichung
- 2
- Zeitschrift
- Journal of geophysical research. Solid earth
- Sprache
- eng
- Medium
- Print-Electronic
- Online publication date
- 2016
- Open access status
- Open Access
- Paginierung
- 624 - 647
- Datum der Veröffentlichung
- 2016
- Status
- Published
- Publisher licence
- CC BY
- Datum der Datenerfassung
- 2016
- Titel
- Large-displacement, hydrothermal frictional properties of DFDP-1 fault rocks, Alpine Fault, New Zealand: Implications for deep rupture propagation.
- Sub types
- research-article
- Journal Article
- Ausgabe der Zeitschrift
- 121
Files
https://agupubs.onlinelibrary.wiley.com/doi/pdfdirect/10.1002/2015JB012593 https://europepmc.org/articles/PMC4994769?pdf=render
Datenquelle: Europe PubMed Central
- Abstract
- The Alpine Fault, New Zealand, is a major plate-bounding fault that accommodates 65-75% of the total relative motion between the Australian and Pacific plates. Here we present data on the hydrothermal frictional properties of Alpine Fault rocks that surround the principal slip zones (PSZ) of the Alpine Fault and those comprising the PSZ itself. The samples were retrieved from relatively shallow depths during phase 1 of the Deep Fault Drilling Project (DFDP-1) at Gaunt Creek. Simulated fault gouges were sheared at temperatures of 25, 150, 300, 450, and 600°C in order to determine the friction coefficient as well as the velocity dependence of friction. Friction remains more or less constant with changes in temperature, but a transition from velocity-strengthening behavior to velocity-weakening behavior occurs at a temperature of T = 150°C. The transition depends on the absolute value of sliding velocity as well as temperature, with the velocity-weakening region restricted to higher velocity for higher temperatures. Friction was substantially lower for low-velocity shearing (V < 0.3 µm/s) at 600°C, but no transition to normal stress independence was observed. In the framework of rate-and-state friction, earthquake nucleation is most likely at an intermediate temperature of T = 300°C. The velocity-strengthening nature of the Alpine Fault rocks at higher temperatures may pose a barrier for rupture propagation to deeper levels, limiting the possible depth extent of large earthquakes. Our results highlight the importance of strain rate in controlling frictional behavior under conditions spanning the classical brittle-plastic transition for quartzofeldspathic compositions.
- Date of acceptance
- 2016
- Autoren
- AR Niemeijer
- C Boulton
- VG Toy
- J Townend
- R Sutherland
- Autoren-URL
- https://www.ncbi.nlm.nih.gov/pubmed/27610290
- DOI
- 10.1002/2015JB012593
- Externe Identifier
- PubMed Central ID: PMC4994769
- ISSN
- 2169-9313
- Ausgabe der Veröffentlichung
- 2
- Zeitschrift
- J Geophys Res Solid Earth
- Schlüsselwörter
- Alpine Fault
- earthquakes
- friction
- hydrothermal
- Sprache
- eng
- Country
- United States
- Paginierung
- 624 - 647
- PII
- JGRB51467
- Datum der Veröffentlichung
- 2016
- Status
- Published
- Titel
- Large-displacement, hydrothermal frictional properties of DFDP-1 fault rocks, Alpine Fault, New Zealand: Implications for deep rupture propagation.
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 121
Datenquelle: PubMed
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